Subjects will undergo an ultrasonic tenotomy to repair a partially torn rotator cuff per standard of care as clinically indicated

Ultrasonic procedure as part of standard of care, as clinically indicated, to stimulate healing of the partial tear. The procedure uses ultrasound guidance that allows a needlelike device to gradually break up and remove tendinopathic tendon tissue.

Measured using a visual analog scale (VAS), used to measure subjective pain, rated from 0 (no pain) to 100 (most severe pain) at rest and during activity (previously painful activities)

Measured using a goniometer reported in degrees

Assessed using a hand-held dynamometer (HHD) placed distally on the forearm, just proximal to the wrist joint along the distal radius and ulna with instruction to push into the HHD with maximum force production for approximately 5 seconds.

Measured using the SF-36 Quality of Life questionnaire which is a 36-item self-reported health survey that measures health and disability. Possible scores range from 0 to 100, with 0 indicating maximum disability, and 100 indicating no disability.